Hot and cold water faucet.



PATBNTED AUG.` 8, 1905.

W. S. GRAHAM. HOT AND COLD WATER FAUGET.

APPLIGATION FILED SEPT.26, 1904.

2 SHEETS-SHEET 1,

CE J Il It Il z No. 796,576. PATENTED AUG. 8, l905.

W. S. GRAHAM. HOT AND COLD WATER FAUGET.

j@ 70 fnl/@M5077 is screwed, as shown.

UNITED sTATEs PATENT OFFICE.

HOT AND COLD WATER FAUCE'T.

Specification of Letters Patent.

Patented Aug. 8, 1905.

Application filed September 26, 1904. Serial No. 226,019.

To a/ZZ whom. t Wtoty concern:

Be it known that I, WILLIAM S. GRAHAM, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Hot and Cold Water' Faucets, of which the following is a specification.

My invention relates to improvements in faucets for supplying hot and cold water separately or mingled, as desired.

My object is to provide a self-closing faucet of the class mentioned of an improved construction which renders it particularly simple, durable, and desirable for its purpose; and to this end my invention consists in the general construction of the faucet, as well as in details of construction and combination of parts, all as hereinafter set forth, and pointed out in the claims.

Referring to the drawings, Figure l is a vertical section of the faucet with the operating stem and spout in elevation; Fig. 2, a plan section taken on line 2 in Fig. l; Fig. 3, a developed view of a hollow rotary plug forming one of the details of construction; Figs. 4, 5, 6, 7, and 8, plan sections taken on line A in Fig. l and showing the different positions to which the plug may be turned for shutting ofi' the water, supplying either cold or hot water or both mingled in any desired proportion; Fig. 9, a developed view of the inner cam-shaped face of the cap-piece of the faucet; Fig. l0, a similar view of an annular cam-faced boss on the valve-stem; and Fig. 11, a section like Fig. 4, but showing amodified construction. A

The body or casing of the faucet is formed,- preferably, in two parts A A, screwed together, as indicated. The part A contains a chamber (t, in one side of which the spout B At the lower end of the chamber a is an inlet-passage b, shaped at its lower end to form a seat for a rubberball valve C. Screwed upon the upper end of the part A is a cap A2, having a central opening c, and provided in its under side with an annular cam-face formed with two camsockets c', as indicated by the developed View,

Fig. 9. rIhe cap A2 covers a chamber d in the part A above .the chamber c.

D is an operating-stem provided at its upper end with a handle D. Near its upper end Fig. 10. From the chamber CZ the stem D passes downward through the opening d to the 'chamber a and through the inlet-opening to a chamber f in the part Al of the casing.

In the chamber a is a deflecting-tongue ct,

ber t and connecting with the cold-water supply.

The part A of the casing has a downwardextending tube t' and an inner concentric tube it. The coupling E when screwed upon the lower end of the tube registers at its chamber t with the annular' passage c", which is the f' cold-water passage, and bears at a seatingface around its passage g, with the lower end of the innerl tube or hot-water passage /c/ to The lower part of f" form a water-tight joint. the chamber f forms a cup-shaped seat for a rotary cylindrical hollow plug-valve F. The cold-water passage c" terminates at a port 2 in the lower part of the chamber fat one side, and the hot-water passage It" terminates at a port in the opposite side of the lower part of the chamber f. The cylindrical wall of the plug-valve in turning slides across and more or less effectively closes the said ports 2 7a2. In one side of the plug-valve F, Fig. 1 to 8, in the plane of the ports 2 762 is an elongated port l and directly opposite the center of the said port is a port m, which may have one-third the area of the port Z. In the upper part, at opposite sides of the plug-valve, are vertical slots n. Fastened upon the lower end of the stem D in the chamber f is a ball-holding basket D2, provided atopposite sides with laterally-projecting lingers or keys p, fitting the slots n of the plug-valve and sliding vertically therein. The ball C surrounds the lower end portion of the stem D and is held in place by the basket, as shown.

In the chamber d is a spiral spring (Z2, which bears against the under side of the boss e to press the stem D upward and seat the valve C. When in this position, the apeXes of the cams e' register with the deepest portionsof the cam-faces c. In this position the plug F is as shown in Fig'. 4,' wherein the ports 762 Z2 are blanked by the wall of the plug F. Turning of the stem D by means of its handle D in either direction causes the cams e in bearing against the inclined surface of the cam-faces c to move the stein in the downward direction against the resistance of the spring Z2 and open the ball-valve C. In the turning of the stem D in one direction the plug-valve is moved first to the position shown in Fig. 5. This causes the port Z to register at one end with the port 7'32 and permit hot water to flow into the chamber f, within the plug-valve and escape upward, passing out at the spout B. Further turning of the stem in the same direction to the position shown in Fig. 6 causes the port Z to remain in register with the port 702 and the port m to register with the cold-water port 2, whereby cold water will mingle with the incoming hot water and escape through the spout. When the handle Dl is released, the

spring Z2 returns the parts to normal position,

shutting off the water. When the stem is turned in the direction opposite to that stated, the plug-valve is iirst moved to the position shown in Fig. 7 to admit cold water. Further turning of the stem to move the plugvalve to the position shown in Fig. 8 causes hot water as well as cold water to enter.

The cam-faces c', as I prefer to provide them, are formed with small inclined shoulders c2 at opposite sides, and the cams e are formed with small inclined shoulders @2. These shoulders'indicate by slightly obstructing the turning of the stem and by a slight clicking noise when the plug-valve has been turned to the position shown either in Fig. 5 or that shown in Fig. 7. The shoulders will not, however, obstruct the turning sufciently to prevent the spring Z2 from moving the parts to their normal position to shut off the water when the handle is released.

It will be readily seen how the operator by merely turning the handle D the proper distance in one direction or the other may cause either hot or cold water to flow from the spout or the two to mingle in proper proportions to eifect the temperature desired.

Constructed as shown and described the faucet is particularly compact, strong, durable, and sightly. The interior portions may be readily got at for purposes of replacement or repair when necessary.

Obviously the ports Z m might be of the same size and the ports 2'2 L2 of greater area and positioned to eiiect the same results, as indicated in Fig. 1l, and while I prefer to construct my improvements throughout as shown and described they may be variously modified in the matter of details of construction without departing from the spirit of my invention as defined by the claims.

What I claim as new, and desire to secure by Letters Patent, is-

l. In a faucet for supplying hot and cold plug' from normal position in one direction,v

to register the other of said ports with said hot-water passage by turning the plug in thel opposite direction from normal position, and to register both ports with the said passages by further turning the plug in either direction, an operating-stem for said plug, and an automatically-closing valve normally closing said outlet and connected to said stem to open said outlet in any movement of the stem which turns the plug from normal position, substantially as described.

2. In a Jfaucet Jfor supplying hot and cold water, separately 0r mingled, the combination of a casing having achamber provided with an outlet and with separate hot and cold water inlet passages, a rotary plug-valve in the chamber normally closing said inlet-passages and provided with ports disposed, with reference to said passages and to each other, to4

register one of said ports with said cold-water passage by turning the plug from normal position in o ne direction, to register the other of said ports with said hot-water passage by turning the plug in the opposite direction from normal position, and to register both ports with the said passages by further turning the plug in either direction, a rotary and longitudinally-movable spring-retu rned operating-stem slidably connected with said plug for turning the same, cam mechanism interposed between the stem and casing operating as the stem is turned from normal position to move it longitudinally, and ayalve for said outlet connected with, and opened and closed by the longitudinal movement of, the stem, substantially as described.

3. In a faucet for supplying hot and cold Water, separately or mingled, the combination of a casing having a chamber provided in its upper part with an outlet-opening leading to a spout and provided in its lower part with separate hot and cold water inlet passages, a rotary plug-valve in the chamber normally closing said inlet-passages and provided with ports disposed, with reference to said inletpassages and to each other, to register one of said ports with said cold-Water passage by turning the plug from normal position in one direction, to register the other of said ports with said hot-water passage by turning the plug in the opposite direction from normal position, and to register both ports with the said passages by further turning the plug in either direction, a normally raised rotary and longitudinally movable operating-stem slidably connected with said plug for turning the same, cam mechanism interposed between the stem and casing operating to depress the stem as it is turned from normal position, a valve on said stern closing said outlet when the stem is at its normally raised position and opened by downward movement of the stem, and spring-raising means for the stem, all constructed and arranged to operate substantially as and for the purpose set forth.

4. In a hot and cold water basin-faucet, a faucet-casing having concentric inlet-ports in its under side, an outer tube extending downward from about the outer port and threaded tube.

WILLIAM S. GRAHAM. In presence ot'- WALTER N. WINBERG, F.- M. WIRTZ. 

